Wicd-curses crashes if key contains accents (utf-8 encoding)

When I try to connect to a network with an accent in the wpa pass phrase, wicd-client said wrong password and when I try to configure this network under wicd-curses, it crashes :
Traceback (most recent call last):
  File "/usr/share/wicd/curses/wicd-curses.py", line 904, in call_update_ui
    self.update_ui(True)
  File "/usr/share/wicd/curses/wicd-curses.py", line 89, in wrapper
    return func(*args, **kargs)
  File "/usr/share/wicd/curses/wicd-curses.py", line 915, in update_ui
    self.handle_keys(input_data[1])
  File "/usr/share/wicd/curses/wicd-curses.py", line 822, in handle_keys
    self.diag = WirelessSettingsDialog(pos,self.frame)
  File "/usr/share/wicd/curses/netentry_curses.py", line 270, in __init__
    self.set_values()
  File "/usr/share/wicd/curses/netentry_curses.py", line 327, in set_values
    self.change_encrypt_method()
  File "/usr/share/wicd/curses/netentry_curses.py", line 418, in change_encrypt_method
    wireless.GetWirelessProperty(self.networkid, field[0])))
  File "/usr/lib64/python2.6/site-packages/wicd/misc.py", line 493, in noneToBlankString
    return str(text)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 3: ordinal not in range(128)

I'm using Slackware64 -current and wicd-1.7.0

my wicd-log when I use wicd-client :
2011/02/14 11:53:08 :: Connecting to wireless network Aurelien
2011/02/14 11:53:09 :: Putting interface down
2011/02/14 11:53:09 :: Releasing DHCP leases...
2011/02/14 11:53:09 :: Setting false IP...
2011/02/14 11:53:09 :: Stopping wpa_supplicant
2011/02/14 11:53:09 :: Flushing the routing table...
2011/02/14 11:53:09 :: Putting interface up...
2011/02/14 11:53:11 :: Generating psk...
2011/02/14 11:53:11 :: Attempting to authenticate...
2011/02/14 11:53:46 :: wpa_supplicant authentication may have failed.
2011/02/14 11:53:46 :: connect result is Failed
2011/02/14 11:53:46 :: exiting connection thread
2011/02/14 11:53:47 :: Sending connection attempt result bad_pass

There is no log for wicd-curse.

I have the same issue under xterm, urxvt, tty, root or my user.

Sorry for my english.